Sectional boiler



March 15, 1932. H. E. BUTTON L3492225 SECTIONAL BOILER 4Filed Jan. 28,19:51

Patented Mari 15, `1932' rUMTIED* STATES HAROLD E. nU'.rcr.oI-i,oi1nANslnowNn, PENNSYLVANIA, lAssIefNoR TonuTtroN-NELSQN, INCORPORATED, orPII'I LADRIJPIIIA,V PENNSYLVANIA, A CORPORATION or PENN- SYLVANIAApplication mea january as, 193i. serialY 511,666.

:This invention, stated in its broadest terms, relates to heatingapparatus and has Vmore especial relation to'a sectional boiler. ,i

One object of, the present Invention is to provide a Vsectional boilerof -simple constructionand of high eciencyl equally welladapti ved forsteam, hot water,A or vapor heating vplants at a costnot exceedingconventional Y 4sectional boilers.y

Another `object of the present invention'is to provide a construction inwhichdeinite separate channels are provided for the upward and downwardcirculation of the water inl eachsection.

A Another object-of the present invention is to provide a constructionin which each channel for the upward ow of the water is of one size andshape, in `cross-sectional area throughout its length, and it withoutbranch connections or connectionsto other channels Vat any point betweenthe bottom-intake opening and the top exitopening of-each tube.V

Still another object of the presentinvention is to provide aconstruction in which the cross-sectional area of the sum of thecross-sectional areas ofall upward channels towhich it connects.

Another object is to provide aconstruction in whichL-shaped tubes areemployed to l tion is to provide. al construction, arrangeandAcombinationo v partsl -iforLat'taining the results sought by thevforebaiile is arranged vinparallelism withgthe inl side wall of thesection leg forming'a narrow channel for upwardl travel of waterandpro-` vidi'ngfachannel of greater-area forzdown-v ward travel ofwater, said baffle at itsjbottom being arrangedgslig'fh'tly abovethenipple connection of the boiler.V section@ but vat-its Vtopterminating ushwith theftop vofhthe tubes Vof Vthe section.V Y

Another -ob e'ct of the present linventionis torprovide aconstruetionofthe charactervr o lspaces vthe walls oflthe tubesV and the v vallsl ofthe Y' downwardy channels are substantially larger than `the ment,connection,v

Fi'gfl 'is a `view tion',v of a boilerembodyingthe' invention;

stated in'which the vertical tubes open directly into a steam dome Vojasize suliicient to efiicien'tly permit proper Vsteam separationandcirculation of waterito the downward channels.

, 5 `Anotherfobject of thepresent invention Ato'fprovide a constructionin which vthe tubes are soarranged as to provide vintervening betweenthe several tubes, and between legs of Vthe boiler sectionfor thecombustion gases;

Still another'` object of the present l.invention is to provide aconstruction in which the tubes are so vplaced 'as to .produce astagpassage of `gered relation in theupward flow of theflue gasesl f' toprovide a construction in which afflue of .approximately vone-half'. thecross-sectional proper exit of the flue gasesn Still another object ofthepresent inventionis toprovide a 'constructionin which lonly the waterin the upwardchannels `are brought 'indirect communication with the hotgases of combustion, assuringa properl direction of circulation at alltimes when the boilerV 'is under normal operation.

vStill affurther object of the present invengoing'fobjects. H Y l, Theinvention lconsists of the novel- -con- VAnother object: oit the presentinvention' is 'l leo' fenL-in-fconnection-with-the@accompanying4driwvings Lforming"y part 'rliereo'f,#and-' 4 inA f stood that thevarious instrumentalities ,ofV

which my invention consists can be variousl A arranged and organized andthat in int i D vention is not limited'to'tlie precise arranger ment andorganizationof the instrumentalities as herein shown and described.

Referring to the drawings in detail, the

reference numeral ltl'designates the frame vof the lire box in which maybe placed an oil burner, a gas burner, or a fire may be built ther-einfor the purpose of generating heat.

Mounted upon the tire box frame is the secf tional boiler embodying theinvention, and a description will first be given of a coinplete sectionor. unit which may be made of cast-iron, brass, aluminum, or othersuitable lmetal. `A section or unit comprises a rectangular, box-likestructure having a substantially L-shaped open portion upon two of itsopposed vertical faces. Arranged within this open portion are aplurality of tubes, tlireeiin number, for the circulation fg; ofwater.

These tubes, three in number, which are designated 12, 13, and 14,areformed as an integi'al part of the section or unit- 11. Each of thesetubes is of L-shaped Vconliguration with its lowerniost or horizontalportion slightly inclined upwardly in a direction toward the verticalportion of the tube. Between each of these tubes 12, 13, and 14 there isprovided a space which -spaces are designated'l, 16, and 17, for thepassage of combustion gases between the tubes. The

reference numeral 18 designates "one of the water legs with which thetubes 12, 13, and

i Vthe topfof .the tubes12,.13, Vand 14. The ref- .erence numeral 25`designates a line-way or 14 communicate. rlhe reference numeral 19designates an oppositely disposed water leg also with which the tubes12, 13, and 14 communicate, as they do also with the steam space or dome30. TWithin this latter water leg 19 is arranged a vertically disposedbalile plate 2OA which parallels the vertical inner wall of the leg andis spaced from the inner wall ofthe water leg to forni a narrow channel21 between the water leg 19 and the outer wallg-of passage'22 which isin communication with the fire box. The lower end ofthe baffle plate isarranged in horizontal alignment withthe nipple openings 23 and 24 atthe bottom of the boiler section and thetop of the baliie plate isarranged ina plane at channel which is horizontally arranged to receivethe combustion gases from the passages 15, 16, 17, and 22 from which thesame pass to a flue box and thence to a chimney, not shown in thedrawings. The iiue-way or channel 25 in cross-section is about onehalfthe cross-sectional area of the boiler section itself. The referencenumeral 26 designates the upper nipple opening of the boiler sectionlland which is of relatively large diameter. This nipple opening 26 islocated Vwell above the tops of the water tubes 12,

13, and 14 and to one side thereof in contradistinction to immediatelyabove the same. The normal water level of the boiler sections;is"atleastthree vinches above the bottom of the nipple opening 26, sothat'plenty of steam "space '30 is present above the water tubes topermit of uninterrupted agitation, thereby providing a delinite,continuous circulation of water through the entire boilei-and eachsection.. As clearly shown in Fig. 3, the

water tubes vhavestaggered relation one with anotherso that a tortuouspath is, provided for the travel of combustion vgas-es between:the-.tubes b oth horizontally and vertically consider-ed.` Thereference numeral 27 designates the water inlet connection, and 28designates the outlet connection. `Each of the nipple topenings at oneend of the Aboiler sec- .f

tion is closed by means of a plug 29 and a cover `plate 30 may be fittedover theL- shaped space of each end oft-he boiler section, the samehaving been omitted in Fig.

nl for the purposes of better illustration. if. While Iliaveshown myboiler sections as mounted upon a lire-box, obviously the boilersectionsmayhave their bottom portions eX- tended to Yform feet ifdesired.

What-is claimed is:

1. A sectional boiler unit comprising Va structure having an L-sliapedopening in its side walls dividingthe structureV into spaced Water-legs,said L-shaped opening having arrangedtherein water-tubes following `the.1

contourof said open-ing with passages between adjacent tubes for ,thepassage of combustion gases, said-water tubes .being connected at theirlower ends tc at least one oit' said water legs, a `horizontallyarranged e steam dome in-a plane above said water tubes withwhichsaidwater-legs and tubes coni- `niunicate, and a flueeway arrangedbelow said steam dome and communicating with the topsv of saidcombustion gas passages.

2.111. sectional `boiler unit vcomprising `a structure having anL-shaped opening in its .sidewalls dividing the structure'intospacedwater-legs, said Lsliaped opening having arranged therein ivater-.tubesincluding ingress andfegress openingssaid tubes following the contourofsaid opening with passages between adgacent tubes for'the passage ofcombustion gases, saidwater tubesbeing coninected kat their lower endsto at least-one of Vsaid water legs, a

v throughout its extent, Y a

dome ink a plane abovexsaid` horizontally arranged steamrdome in a planeabove said water tubes vwith which said water-legs and tubes com- `J'municate, a flue-way arranged below said steam dome and communicatingwith the tops of said combustion gas passages, and a steam outletconnection for said steam dome arranged in alignment openings oiopenings are arranged at the bottom Loi: said L-shaped portion but outof alignmentwith the water-tube egress openings.

3. A sectional boiler unit comprising a structure having an L-shapedopening in its Y l y tops of said combustion gas passages.

unit comprising a A side walls dividing the structure.' into spacedwater-legs, said L-shaped opening having arranged therein water-tubesinoluding'vertically disposed portions following the con-v tour ot saidopening with passages between adjacent tubes for vthe passage ofcombustion gases, said water tubes i at their lower ends to at least oneof said water legs, a baiie plate in one of said waterf legs arrangedinparallelism with the vertical portions of said water-tubes andcombustion 'gas passages, a horizontally arranged steam dome in a. planeabove said water-tubes Vwith which said water-legs and tubescomniunicate, and a Hue-way arranged belowl p said steam dome andcommunicating with the tops of said combustion gas passages.

4f. A sectional boiler unit comprising a structure having an L-shapedopening in its side walls dividingA the structure into spacedwater-legs, said lfshaped opening having arranged therein water-tubesfollowing the contour oi saidopening with passages between adjacenttubes bustion gases, said water tubes being con,- nected at their lowerends to at leastone of said water legs, the crosssectional area of eachwater-tube being of the same dimension horizontally arranged steamwater-tubes with which saidwater-legs and tubes communicate, and aflue-way arrange below said steam dome and co inmun'ioating with thetops of said combustion gas passages.

5. A sectional boiler unit comprising a structure having an L-shapedopening in its side walls dividing the structure into spaced water-legs,said L-shaped opening having ar' ranged 'therein water-tubes following`the the contouror1 between adjacent tubes for thepassage 'of combustiongases, said water tubes being conlower ends to at least Vone oft ahorizontally arranged nected attheir said water legs, steam dome in aplane above said wateritubes with which said water-legs andtubescommunicate, and a'flue-way arrangedbelow said steam dome Vandcommunicating with the tops of said combustion gas passages.fk

6. A sectionalfboiler `unit' comprising,V a

with the ingress the water-tubes which ingress' side walls dividingbeing connectedv vportions ot said water-tubes tion gas passages.,

for the passage of com-v said opening with vpassages strii'icture having'an li-shaped openinginjits -side,wallsdividingthestructure into spacedL-shaped opening having are l ranged=tlierein waterltubes following thecon- *touriof said opening `with adj acentl tubes for` the 'passage' ofcombustion water'ilegs, 'said passagesrbetween gases,- ksaid water tubesbeing" connected iat their'lower ends to atleast one ofthe water j flegs,saidwater-tubes'being arranged in staggered relation, ahorizontally arrangedsteam domein aplane above said water-tubes withrwhich said waterj-legsand tubes communi-v cate, and-I a flue-wayarranged below said steam dome `and communicating with the .n

7. A sectional boiler structure havingan L-shaped opening in its thestructure intovspaced water-legs, said L-shaped opening having ar- ,l

ranged therein water-tubes including hori-4 disposed portions, saidtubes following the contouro said opening with passages between adjacenttubes 'or the zontal and vertically passage of combustion gases, saidwater tubes being connected at least one of said water-legs,

being slightly inclined in a direction toward lthe vertical plane abovesaid water-tubes with which said water-legs and tubes communicate, and aflue-way arranged below said steam dome-and communicating with the topsof said combus- 8.. A sectional boiler unit comprising a structurehaving an` L-shaped opening in its side walls dividing the structureinto spaced water-legs, said L-shaped opening having arranged thereinwater-tubes Jfollowing the contour of said opening withpassages betweenadjacent tubes Jfor the passage of combustion gases, said water tubesbeing connected at their lower ends to at least one of said water legs,ahorizontally arranged steam dome in a planeabove said water-tubeswithwhich said water-legs and tubes communicate, a

`flue-way arranged below Said-steam domeA the tops of said` andcommunicating with combustion gas passages, anda cover plate removablyfitted to said L-shaped opening.

9.. A sectional boiler unity comprisingl al their lower ends to at lythe horizontal ortionsthereof and arranged in parallelism,l r ahorizontally arranged steam vdome in a structure having anvL-shapedopening in its Y.

side walls ldividing the structure into spaced water-legs, said L-shapedopening having ar` ranged vtherein water-tubes including. ingress andegress openings,said tubes `following the bef V.tween adjacent tubes forthe passage of combustion gases, said water tubes being c on-Ynectedatftheir lower ends to at 'said :water legs, Y a horizontallyVarranged contour ofsaid opening with Vpassages least one of steam Vdomeinja'v plane above said waterige l tubes, with'which said water-legs andtubes communicate, a flue-way arranged below said' 130! .let connectionfor Said Water-tubes, which ingress 4 Steamdome and communicating withthetops of said combustion gas passages, a steam outstruoturearranged-1in alignment- Wth the ingressr openings of the ranged atthebottom of sald L-shaped-portion, but out of alignment With theWater-tbeand an upper'nipple connec-A egressopenings, tion for the boiler sectionofrelatively large diameter, lche bottom Wall of which is arranged in aplane appreciably below the no1- mal Water-line of the boiler section.

HAROLD E. DUTTON.

